Adivice: Art Quilts and Quilt Shows

My quilting guild hold a show every two years, the next will be in 2012. Last year we added a category for Art Quilts and Mixed Media. Our main judge seemed not to fully get Art Quilts. She a great judge in the tradition style, no complaints that way.

We are now working on the next show and would like to help to reduce some of the confusion for traditional judges when judging Art Quilts. What advice would give? We need help in clarify the differences and the similarities between the two styles.